Analysis
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max time kernel
100s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
17-01-2023 22:03
Behavioral task
behavioral1
Sample
0afeffe1c2d9599498792f5842021d5d.xls
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
0afeffe1c2d9599498792f5842021d5d.xls
Resource
win10v2004-20220901-en
General
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Target
0afeffe1c2d9599498792f5842021d5d.xls
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Size
231KB
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MD5
0afeffe1c2d9599498792f5842021d5d
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SHA1
c5015c2202798f7a569f3a3c42c294f543e9dfc4
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SHA256
9b0405339b38e4bcc7ec3d5d0cf6bfcd8ba44c16d7cd235ab1c2b81755cbb7a6
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SHA512
ceee7c59491cf2fb7bc392e43619d09f9d4d85c4282e96ad35bd619093767431862d51f8925053bda28dbe112fef2b744f251c9840383e652734f6de88bc7df6
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SSDEEP
6144:ek3hOdsylKlgryzc4bNhZF+E+W/gEMmXJy:umX
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4084 2672 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2816 2672 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1020 2672 cmd.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\46E65E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2672 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE 2672 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 2672 wrote to memory of 4084 2672 EXCEL.EXE cmd.exe PID 2672 wrote to memory of 4084 2672 EXCEL.EXE cmd.exe PID 2672 wrote to memory of 2816 2672 EXCEL.EXE cmd.exe PID 2672 wrote to memory of 2816 2672 EXCEL.EXE cmd.exe PID 2672 wrote to memory of 1020 2672 EXCEL.EXE cmd.exe PID 2672 wrote to memory of 1020 2672 EXCEL.EXE cmd.exe PID 4084 wrote to memory of 3492 4084 cmd.exe attrib.exe PID 4084 wrote to memory of 3492 4084 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\0afeffe1c2d9599498792f5842021d5d.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1020-141-0x0000000000000000-mapping.dmp
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memory/2672-135-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-144-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-132-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-136-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-137-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmpFilesize
64KB
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memory/2672-138-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmpFilesize
64KB
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memory/2672-147-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-146-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-133-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-145-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2672-134-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmpFilesize
64KB
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memory/2816-140-0x0000000000000000-mapping.dmp
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memory/3492-142-0x0000000000000000-mapping.dmp
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memory/4084-139-0x0000000000000000-mapping.dmp